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Well, personally I dont need more facts to convince me that I should change the oil. If I change the oil filter every 30 or 50 thousand km that would be enough. If they have done the test spending 13500 liters of fuel at top speed think about normal driving conditions where we normally dont cause stress. Driving at top speed is destructive for your car. I think 148 hours driving non stop (except refueling and changing tyres) is very long time. If i compare my way of driving to this test i can safely drive with the same oil for at least a decade.
Driving at top speed is like a human running at top speed. It wont last much.
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